What does bearing numbers 306 57, 306 23, 23 and 57 mean Thank you

There are two non-standard tapered roller bearings.

0 is the width series code of the indefinite series, 6 is the diameter series code of the indefinite series, the indefinite series refers to the size series of the diameter series and the width series of the bearing can not be determined, and the diameter and width of this kind of bearing can not be compared with the standard size.

23 and 57 are the actual size of the inner diameter, because in the non-standard bearing inner diameter code notation: the inner diameter below 500mm can be divided by 5 integers, divided by the quotient of 5, other dimensions are directly expressed by the actual inner diameter of millimeters, but should be separated from the size series code with "". For more information, you can find the Mechanical Design Manual.

306 57 and 306 23 These are two non-standard tapered roller bearings, where the numbers do not represent anything alone. If I had to say what 57 and 23 stood for, they only stood for the inner diameter, but definitely not 57mm and 23mm. It should be 23

mm and 57**mm The 06 in front of it has no practical meaning'. And you should have an English letter prefix before these two models, which is estimated to be LR306 57 and LR306 23.

However, there are many annotation methods that do not have LR.

I forgot, check the book, there is a cutting manual.

The previous representation is the type of bearing, there are balls, cylindrical, single-row, double-row, thrust, plane, universal and other types of bearings, which one I don't remember, or you wait for me to check the book tomorrow.

306 I remember was meant to be balls, single row ball bearings, and then was meant to be the inner diameter.

Can 32309 bearings and 306 47 bearings be universal.

Dear, hello, I am glad to answer for you, 32309 bearings and 306 47 bearings can be universal Answer: bearings are national standard parts, different bearing manufacturers should use national standard reference data, in strict accordance with the given data size processing and production, so different manufacturers of the same type of bearings can be universally installed and used. However, in the field of modern industrial machinery, more and more special machinery, especially niche machinery, standard bearings can not meet the requirements of use, so the strength of bearing manufacturers will be required to produce non-standard bearings, non-standard bearings, although the bearing model may be marked the same, but may not be universal.

The bearing type of 32309 is a cylindrical roller bearing, and its parameter size: inner diameter 45, outer diameter 100, width 25, weight bearing type is a circular roller bearing, its parameter size: inner diameter 45, outer diameter 100, width 25, weight and the difference between 30309 bearing:

1. The bearing types of the two are different. 2. The weight of the two is different.

Summary. Dear, I am glad to answer for you that model 3507 and 52307 are not the same bearing.

Dear, I am glad to answer for you that model 3507 and 52307 are not the same bearing.

Model: 52307 Bearing Brand: SKF Bearing Series:

Thrust ball bearing, bidirectional inner diameter: 30mm outer diameter trace this line: 68mm thickness:

44mmSKF52307 bearing can be used for: arc model, forklift, construction materials, meat processing equipment, flame arresters, plastic welding machines, flotation equipment, automatic spraying sand machine, rubber cutting machine, braiding machine, concrete mixer, automatic pump, steel rolling equipment, radial drilling machine, electric welding machine, and so on.

Model: 3507 Bearing Type: Spherical roller bearing bore (mm):

35 Outer diameter (mm): 72 Width (mm): 23 Spherical roller bearings are mainly used to endure radial loads, and can also withstand a certain amount of axial loads, but generally cannot withstand pure axial loads.

The raceway of the outer ring of this kind of bearing is spherical, and the former residence has self-aligning performance, when the shaft is tilted or bent again, and the center line of the inner ring and the center line of the outer ring are not more bent than each other, the bearing can still work normally. Its structural principle and characteristics are the same as that of the self-aligning ball bearing, the only difference is that the sliding body is a spherical roller, because the sliding body is not permeable, so its bearing capacity is small, and it is widely used in mining and heavy machinery. The cover is designed to allow the axial offset of the shaft or housing to be within the axial clearance range of the bearing.

Spherical roller bearings and spherical ball bearings can be substituted for each other if capacity and infinite torque permit.

Hello dear, the bearing code 61355 usually refers to a needle roller bearing, the specific model is NAO15X32X12. Among them, 61355 is the international code of the bearing, NAO means that the bearing is a needle roller bearing without inner ring, 15 means the inner diameter is 15 mm, 32 means the outer diameter is 32 mm, and 12 means that the bearing width is 12 mm before the lack of bearing. Needle roller bearing is a kind of bearing mainly used to support the smaller radial load than the spine, because of its compact structure, light weight, so it is widely used in a variety of machinery and equipment.

This type of bearing is suitable for applications that need to withstand high-speed rotation and small radial loads, such as household appliances, automobile engines, transmissions, grinding machines, CNC machine tools, etc.

32209 stands for a bearing with specific geometric dimensions and capabilities, and its code can be used to distinguish different bearing types and specifications, and the specific meanings are as follows- 32: Rock pants represent tapered roller bearings, i.e., tapered bearing structures, which are characterized by bearing large radial and axial loads and high load carrying capacity. - 209：

Represents the size and size of the bearing**. In this case, 2 indicates a medium series round-off; 0 indicates the size series positioning of the bearing; 9 indicates the specific size of the bearing. 32209 bearings are selected from the entire specification series of bearings with a specific size and capacity.

Therefore, the meaning of the designation of 32209 bearing can be simply summarized as: a tapered roller bearing with a medium rounding degree, with a specific bearing size and capacity, suitable for medium and large machinery and applications to withstand high radial and axial loads.

Summary. Dear dear, it's a pleasure to answer your <>

What is the meaning of 32209 bearing code; The first digit 3: denoted as the second digit of the bearing series The number 2: denoted as the model series, and the third digit of the tapered roller bearing in this series is the 2:

Expressed as the basic inner diameter of 45mm, related to the specific inner diameter of the fourth digit 0: expressed as the basic outer diameter of 85mm, related to the specific outer diameter of the fifth digit 9: expressed as the basic width of , related to the specific width of the size Therefore, the 32209 code represents the inner diameter of 45mm, the outer diameter of 85mm, the width of the tapered roller bearing series products.

What is the meaning of 32209 bearing code;

Dear dear, it's a pleasure to answer your <>

What is the meaning of 32209 bearing code; The first digit 3: denoted as the second digit of the bearing series The number 2: denoted as the model series, and the third digit of the tapered roller bearing in this series is the 2:

Expressed as the inner diameter of the base of the cloth is 45mm, which is related to the specific inner diameter size of the fourth digit 0: expressed as the basic shape of the spike diameter of 85mm, and related to the specific outer diameter of the fifth digit 9: expressed as the basic width of , related to the specific width of the size Therefore, the 32209 code represents the tapered roller bearing series products with an inner diameter of 45mm, an outer diameter of 85mm and a width.

<> related extensions: A bearing is a mechanical element that is widely used in mechanical equipment to support axial and radial loads on rotating shafts and to reduce friction. It usually consists of several parts, such as the inner and outer rings, rolling elements, and cages, etc.

According to different forms and uses, the bearings are divided into many types, such as rolling bearings, sliding bearings, mounted bearings, etc. The main function of the bearing is to make the relative motion between the bearing and the housing of the rotating machinery become a rotary motion or sliding motion, and reduce the friction loss and energy loss. At the same time, the bearing is also responsible for bearing radial and axial loads and ensuring the stability of the rotating shaft and the control of angular deviations.

The application range of bearings is very wide, covering a variety of important machinery and equipment, such as automobiles, planes, trains and other means of transportation; aerospace, military equipment and other high-tech fields Sun Zhuan; construction and engineering facilities, etc. Therefore, the bearing industry is an important mechanical basic parts line or punching industry, which has played a positive role in the development of the country's industry and the promotion of the machinery industry. <>

Summary. Deep groove ball bearings are generally composed of a pair of rings, a set of cages, and a group of steel balls. Its structure is simple, easy to use, is the most common production of the most widely used type of bearing.

This type of bearing is mainly used to bear radial loads, but can also bear a certain amount of axial loads in either direction. When the radial oil gap of the bearing is increased within a certain range, this kind of bearing has the properties of angular contact ball bearing, and can also bear a large axial load. When a deep groove ball bearing is mounted on a shaft, the axial displacement of the shaft or housing can be limited to the axial range of the bearing.

At the same time, when the housing bore and shaft (or outer ring to inner ring) are relatively inclined, (no more than 8 -16, determined according to the clearance) can still work normally. Since there is tilting, it is inevitable to reduce the service life of the bearing.

Deep groove ball bearings are generally composed of a pair of rings, a set of cages, and a group of steel balls. Its structure is simple, easy to use, is the most common production of the most widely used type of bearing. This type of bearing is mainly used to bear radial loads, but can also bear a certain amount of axial loads in either direction.

When the radial oil gap of the bearing is increased within a certain range, this kind of bearing has the properties of angular contact ball bearing, and can also bear a large axial load. When a deep groove ball bearing is mounted on a shaft, the axial displacement of the shaft or housing can be limited to the axial range of the bearing. At the same time, when the housing bore and shaft (or outer ring to inner ring) are relatively inclined, (no more than 8 -16, determined according to the clearance) can still work normally.

Since there is tilting, it is inevitable to reduce the service life of the bearing.

What is the difference between 6310-402 and 6310-407?

Dear, I am glad to answer for you: the difference between bearing 6310-402 and 6310-407 shaft? A:

The difference between bearings 6310-402 and 6310-407 is that the number of rows of rolling elements is different, and 6310-407 is a multi-row cylindrical roller. 6310 bearing metal sliding bearing is the most used three-layer composite bearing, this shaft number bearing is generally based on carbon steel plate, through sintering technology on the steel plate first sintered a layer of spherical copper powder, and then sintered on the copper powder layer on the reed grinding about a layer of PTFE lubricant; Among them, the main function of the middle layer of spherical copper powder is to enhance the bonding strength between the steel plate and PTFE, and of course, it also plays a certain role in bearing and lubrication during work.